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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6242) Progress report log is incredibly excessive in application master
Date Thu, 26 Feb 2015 19:42:06 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Varun Saxena updated MAPREDUCE-6242:
------------------------------------
    Status: Patch Available  (was: Open)

> Progress report log is incredibly excessive in application master
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-6242
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6242
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: applicationmaster
>    Affects Versions: 2.4.0
>            Reporter: Jian Fang
>            Assignee: Varun Saxena
>         Attachments: MAPREDUCE-6242.001.patch, MAPREDUCE-6242.002.patch
>
>
> We saw incredibly excessive logs in application master for a long running one with many
task attempts. The log write rate is around 1MB/sec in some cases. 
> Most of the log entries were from the progress report such as the following ones.
>     2015-02-03 17:46:14,321 INFO [IPC Server handler 56 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000000_0 is : 0.15605757
>     2015-02-03 17:46:17,581 INFO [IPC Server handler 2 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000000_0 is : 0.4108217
>     2015-02-03 17:46:20,426 INFO [IPC Server handler 0 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000002_0 is : 0.06634143
>     2015-02-03 17:46:20,807 INFO [IPC Server handler 4 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000000_0 is : 0.55556506
>     2015-02-03 17:46:21,013 INFO [IPC Server handler 6 on 37661] org.apache.hadoop.mapred.TaskAttemptListenerImpl:
Progress of TaskAttempt attempt_1422985365246_0001_m_000001_0 is : 0.21723115
> Looks like the report interval is controlled by a hard-coded variable PROGRESS_INTERVAL
as 3 seconds in class org.apache.hadoop.mapred.Task. We should allow users to set the appropriate
progress interval for their applications.



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